severákova polívka

asi zelňačka (mainly in czech)

(fork of http://severak.soup.io/)


severak 12.8.2019 13:57:15

When Astronomers Chased a Total Eclipse in a Concorde

In the 1970s, a small group of astronomers used the first prototype of the Concorde to pursue a total eclipse across the Sahara at twice the speed of sound.


login